Coupling bracket for air compressor



FIG. 1 is a front perspective view of a coupling bracket for air compressor showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a rear elevational view thereof; and,

FIG. 9 is a rear elevational view thereof, the air compressor depicted by means of broken lines being for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for a coupling bracket for air compressor, as shown and described. 